What, you mean parallel compression?
You set up a compressor, kinda strong like -30 threshold and ratio of 6 or so, and set the release to around 50
Then you make a "Group" and send all your drums to that group.
Then you set the compressor you just set up to that group as a SEND, and set it to maybe -9 or so, judge for yourself by listening.
What this'll do is add a bit of a snap to your drums, it'll liven them up a bit. I do it on literally every song I do with drums now.
This does NOT replace individual compression for each drum piece (kick, snare, etc)